I switched from rainloop to snappymail. Everything worked in rainloop. I modified /etc/snappymail/data/data/default/domains/default.ini according to the instructions.
I tried reinstalling it with the command /usr/local/hestia/install/upgrade/manual/install_sieve.sh
I looked for it in the advanced interface menu\admin_3453534 and there is nothing there either.
The interesting thing is that the rules work. I just can’t add new ones. There is no interface in the settings